Mounting bracket



Sepf.9,1941. H. A. TRIPLETT Em 2,255,400

MOUNTING BRACKET Original Filed May 26, 1938 Patented Sept. 9, 1941 MUNTING BRACKET Hugh A. Triplett, Wilmette, and Sigurd I. Lindell, Chicago, Ill., assignors to Schweitzer & Conrad, Inc., Chicago, Ill., a corporation of Delaware Original application May 26, 1938, Serial No.

210,122. Divided and this application November 6, 1939, Serial No. 362,986

3 Claims.

Our invention relates, generally, to means for clamping and supporting frangible members, such as insulators and the like, and it has particular relation to such clamping means wherein a yieldable clamping force is uniformly distributed around the frangible member.

This application is a division of our copending application, Serial No. 210,122, filed May 26, 1938.

An object of our invention is to securely clamp a frangible member without likelihood of cracking the same and without the use of cushioning or gasket means between the clamping means and the frangible member.

Another object of our invention is to firmly clamp a frangible member by yieldably drawing together the ends of a yieldable metallic band encircling the frangible member whereby the clamping force is uniformly distributed about the frangible member.

Still another object of our invention is to p rovide for simultaneously securely clamping a rigid member and a frangible member in such manner that the two members are held rigidly with respect to each other without likelihood of cracking the frangible member.

A further object of our invention is to provide for securely mounting a frangible member while at the same time permitting angular adjustment of the frangible member in an improved manner.

Other objects of our invention will, in part, be obvious and, in part, appear hereinafter.

Our invention, accordingly, is disclosed in the embodiment thereof shown in the accompanying drawing, and it comprises the features of construction, combination of elements, and arrangement oi parts which will be exemplified in the construction hereinafter set forth, and the scope of the application of which will be indicated in the appended claims.

For a more complete understanding of the nature and scope of our invention, reference may be had to the following detailed description taken in connection with the accompanying drawing, in which:

Figure 1 is a side elevational view of the 1 moroved clamping means, showing its application to an insulator which is illustrated fragmentarily; and

Figure 2 is a detail line 2-2 of Figure 1.

Referring now to the drawing, it will be observed that the reference character Iil designates any suitable support, such as a cross arm or pole on which a rigid member in the form of a sectional view taken on the bracket II is mounted by a suitable bolt I2 eX- tending through the shank IIa. The bracket I I is provided for carrying a hollow frangible member or insulator I3, such as an insulator for the fuse cutout disclosed in the aforesaid application of which this application is a division, by receiving on its opposite sides the apertured ears of a resilient flexible metallic band I4 which encircles. the central part of the insulator I3. Suitable retaining means such as bolts I6 and I'I extend through the apertured ears of the band I4 and apertures in the ear I Ib of the bracket II for securely mounting the frangible member or insulator I3 in position.

As illustrated more clearly in Figure 2, the apertured outer end portions Illa of the band I4 through which the bolt I5 extends engage the adjacent surfaces of the ear IIb, while the intermediate apertured end portions Ib are spaced or offset from the outer end of the ear IIb. The bolt I5 holds the frangible member oi' insulator I3 rmly to the bracket II while angular adjustment is permitted by loosening the bolt II. The intermediate portions Idb are sufliciently flexible so as to prevent rigid clamping of the insulator I3 when the bolt I'I is tightened. Since the insulator I3 is usually formed of frangible material such as porcelain, it might be broken if it were clamped too tightly which is often the case when rigid rather than flexible clamp means is employed. The band I4 is also flexible enough to permit the end portions Illa to be spread apart and slipped over the mid-section of the insulator i3 in assembling the device.

The spaced apart intermediate sections Ib with the bolt II passing therethrough, constitute yieldable means for clamping the band It around the insulator I3. It is important to note that the intermediate portions Mb are spaced apart because the outer end portions Ida are inwardly offset therefrom. Thus, when the bolt I'I is tightened, the clamping force is indirectly applied in a yieldable manner to the band I4 so that it is actually tensioned instead of the force being unyieldingly applied thereto as would be the case were the intermediate portions I4b not thus spaced apart In this manner the clamping force is uniformly distributed around the insulator I3 and is not localized at certain points. This permits a greater total clamping force to be applied without danger of fracture due to localized bearing force against the frangible member or insulator I3.

It will be seen that the two bolts I6 and I1 passing through the ear IIb provide a twopoint support Which prevents rotation of the insulator I3 in a vertical plane With respect to the ear IIb. Relative rotation in a horizontal plane is prevented by the clamping action of the band I4 when the bolt I1 is tightened. Adjustment in this plane is permitted by loosening the bolt I1. It will be noted that bolt I7 performs two functions. First, it serves to draw together the intermediate portions ieb, thereby causing the band IQ to yieldingly grip the frangible member I3. Next, by extending through the ear I Ib of the rigid member I I, it cooperates with the bolt I6 to prevent rotation of the rigid member with respect to the band Id.

Since certain changes may be made in the foregoing construction and different embodiments cf the invention may be made without departing from the scope thereof, it is intended that all matter shown in the accompanying drawing or described hereinbefore shall be interpreted as illustrative and not in a limiting sense.

We claim as our invention:

l. A clamp for mounting an insulator of a fuse cutout and the like on a suitable support comprising, in combination, a band for encircling a cylindrical part of said insulator and having end portions extending outwardly therefrom, a brackety disposed to be secured to said support and havingv an ear extending between said end portions, said end portions of said band being offset in such manner that the outer portions engage the opposite sides of said' earl and the intermediate-portions are spaced from the opposite sides of said ear, a rst bolt extending through said end portions and said ear for clamping the same together, and a second bolt extending through said intermediate portions and said ear for adjustably clamping said band to said insulator substantially independently of the clamping action of said first bolt.

2. Means for interconnecting a relatively rigid member and a frangible member comprising, in combination, a yieldable metallic band for embracing said frangible member and having Vend portions extending outwardly therefrom with the outer end portions offset toward each other and the intermediate end portions spaced apart, a retaining member for clamping said oiset outer end portions to said rigid member, and another retaining member extending through said rigid member and cooperating with said spaced apart inner end portions to yieldingly clamp said metallic band to said frangible member.

3. Means for interconnecting a relatively rigid member` and a frangible member comprising, in combination, a yieldable metallic band for embracing said frangible member and having end portions extending outwardly therefrom with the outer end portions offset toward each other and the intermediate end portions spaced apart, both said outer and intermediate end portions being adapted toreceive said rigid member therebetween, a retaining member for clamping said offset outer end portions to said rigid member, and another retaining member extending through said rigid member and cooperating with said spaced apart inner end portions to yieldingly clamp said metallic band to said frangible member.

HUGI-IVA. TRIPLETT. VSIGURD I. LINDELL. 

